Aprilia Scarabeo and SR 50 Scooters Key Replacement

Quick answerOn Aprilia scooters the ignition switch does more than start the engine: it is also the steering lock and the saddle opener, and on the Scarabeo 500 the rear top box lock too. Some versions use a coded transponder key and others a plain one, depending on model and equipment. If your only key is lost, the saddle, the fuel filler beneath it and anything stored inside are all out of reach until a new key is made.

Aprilia Scarabeo and SR 50 Scooters key quick facts

The Scarabeo 200 manual lists a single component as the ignition switch, steering lock and saddle opener, and says two keys are supplied, one being a spare.
On the Scarabeo 200 the fuel tank cap is under the saddle: you lift the saddle and unscrew the cap.
The Scarabeo 200 glove compartment sits under the handlebars in the inner panel and is opened with the key.
The 2003 Scarabeo 500 manual lists an immobilizer light, where fitted, that blinks with the engine off, and describes a transponder embedded in the key grip.
The SR 50 workshop manual for the version with the digital instrument panel says up to four keys can be coded after a loss, starting with the user code.

Aprilia Scarabeo and SR 50 Scooters key types by year

Years	Models	Key type	Chip	Notes
2000s	Scarabeo 200	cut key, two supplied	varies	The 2007 North American manual describes the key switch, saddle opener and glove compartment lock and mentions no immobilizer. We confirm on your scooter.
From 2003	Scarabeo 500	transponder key where the immobilizer is fitted	varies	Immobilizer warning light listed as where fitted. One switch serves as ignition, steering lock, saddle lock and rear top box lock.
Various	SR 50	coded transponder key on some versions, plain key on others	varies	Versions with the digital instrument panel use coded keys, up to four. Older and simpler versions use plain keys.

One switch, several jobs

Aprilia built its scooters around a multi-function key switch. On the Scarabeo 200 the manual shows it near the headstock on the right side, with the usual ON, OFF and LOCK positions and a further action that releases the saddle. The 500 adds the rear top box to the same switch. You do not walk round the scooter with the key; nearly everything is released from the one place.

The upside is convenience. The downside shows up when the switch wears or the key is lost: the saddle, the fuel filler beneath it, the helmet space and the top box all depend on that single lock.

Need a key for your SR 50?

Call or text with the year and where the bike is parked.

Call (619) 775-1858 Text your year, make and model

Or read first: all services · common questions · about us · contact details

Does your scooter have a chip key?

There is no single answer for Aprilia scooters, which is why we ask a few questions first.

A red anti-theft light on the dash that blinks with the engine off points to an immobilizer
A digital instrument panel on an SR 50 points to the coded-key version
The owner's manual for your exact year will have an immobilizer or key coding section if the system is fitted

Locked out of the saddle

A common scooter lockout is the key locked under the saddle, or lost with the helmet and papers inside. On these Aprilias the saddle is released through the ignition switch, so the usual first step is making a key that works that switch. Once the saddle is up, the fuel cap and the storage space are accessible again and we can confirm the new key works every position.

Where a scooter has been stolen and recovered, the key switch may be damaged. A forced switch can sometimes be repaired; otherwise it is replaced and, on coded versions, the keys are stored again afterward.

What to have ready

Photo ID and the registration or title, the model and year, and a description of the dash and key. For coded versions, the user code if you know it and every remaining key, because coding keys again only keeps the ones that are present. Small scooters are easy to move, but a visit to where it is parked still beats pushing one across town with the steering locked.

Where to find the key code

Check the paperwork from the original sale for a key tag or code. On SR 50 versions with coded keys, the user code stored in the instrument panel is the number that matters for programming. Without either, a key can still be made from the switch.

Aprilia Scarabeo and SR 50 Scooters key FAQ

How do I open the saddle on a Scarabeo without the key?

The saddle release is part of the ignition switch, so the practical route is having a key made. We do that at the scooter after checking proof of ownership.

Where is the fuel cap on a Scarabeo 200?

Under the saddle. The manual says to lift the saddle and unscrew the tank cap.

Does an SR 50 need key programming?

It depends on the version. Those with the digital instrument panel use coded keys, up to four. Simpler versions use a plain key that only needs cutting. Tell us the year and what the dash looks like.

Does the Scarabeo 500 key open the top box?

The 2003 manual lists the rear top box lock as part of the same switch as the ignition, steering lock and saddle lock.

The immobilizer system on this bike

Piaggio Immobilizer: Vespa Master Keys and Lost KeysThe Piaggio immobilizer on Vespa and Piaggio scooters uses one master key, with a red or brown grip, and blue or black keys for daily riding.

More Aprilia models

Services for this bike

Scooter Key Replacement: Shutters, Seat Locks and ChipsYes, a key can be made for almost any scooter, and on most 50cc to 150cc models it is a plain metal key with no chip.
Scooter Seat and Storage Locks: How They Open and FailScooters open the seat in one of three basic ways: a separate seat lock that takes the ignition key, a seat position on the ignition switch, or an electric button or keyless fob.
Locked Your Keys Under the Motorcycle or Scooter Seat?Keys get locked under the seat because most seats latch shut with a push and need no key to close.
Corroded Motorcycle Locks From Salt Air: Signs and CareSalt air corrodes the small parts inside ignition, seat and fuel cap locks, and the first signs are a gritty key, a lock that needs a second try, or a little-used lock that stops working.

Where we come to you

Sources

Page last updated November 14, 2026.